UR7HCPXZ-P440 查看數據表（PDF） - Semtech Corporation

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UR7HCPXZ-P440

Advanced “Click-to-Select" No-Drift™ PS/2 Force Stick Controller

Semtech Corporation 

PS/2 MODE COMMANDS

When the Reset Command (FFh)

is received, the UR7HCPXZ-P440

sets the following default

parameters: Incremental Stream

Mode, 1:1 scaling, report rate of

100 Hz, and disabled. It then

sends AAh to the host followed by

a device ID of 00h.

The host sends the Resend Last

Data Stream Command (FEh) when

it detects an error in any

UR7HCPXZ-P440 transmission.

The device then resends the last

output data packet to the host.

This transmission occurs after a

PixiPointTM Z transmission and

before the host enables the

interface allowing the next

PixiPointTM Z output.

The Set Default Status

Command (F6h) re-initializes the

device to its condition at power-up.

The Disable Command (F5h)

stops the device from transmitting

all reports. However, the mode

does not change; the PixiPointTM Z

is still able to respond to

commands. If the Disable

Command is issued while the

device is transmitting a report, the

UR7HCPXZ-P440 immediately

stops the transmission and

disables itself.

The Reset Echo Mode Command

(ECh) returns the device to its

previous mode, and disabled.

The Set Prompt (Remote) Mode

Command (F0h) sets the device

to Prompt Mode. Data values are

then only reported in response to a

Read Report Command (EBh).

If the Set Echo Mode Command

(EEh) is received, the PixiPointTM Z

will immediately return any data

bytes except FFh or ECh.

If the PixiPointTM Z is in Incremental

Stream Mode, the Enable

Command (F4h) will allow it to

begin data transmission. If the

device is in Prompt Mode, the

Enable Command will only update

the internal status of the PixiPointTM

Z.

The PixiPointTM Z will respond to the

Set Sampling Rate Command

(F3h) in both Stream and Prompt

Modes but will only update its

internal status if this command is

enacted while the device is in the

Stream Mode.

The UR7HCPXZ-P440 responds to

the Read Device Type Command

(F2h) with the device ID of 00h.

The Read Report Command

(EBh) prompts the PixiPointTM Z for

a report. The report occurs even if

the device has not moved or if the

status of the switches did not

change.

The Set Incremental Stream

Mode Command (EAh) sets the

PixiPointTM Z to Stream Mode and

disables the device.

The Status Request Command

(E9h) returns a 3-byte status

report.

The Set Resolution Command

(E8h) controls resolution, the Set

2:1 Scaling Command (E7h)

enables a coarse/fine tracking

response, and the Set 1:1 Scaling

Command (E6h) enables the

values of movements to be

transmitted to the host without any

scaling. Due to Semtech’s

Advanced Motion Algorithm, Set

Resolution and Scaling Commands

are acknowledged and reported as

activated, but their status is

ignored.

Copyright Semtech 2000-2001

6

DOC7-PXZ-P440-DS-111

www.semtech.com

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